Electric switch



F- A. BOEDTCHER.

ELECTRIC SWITCH.

APPLICATION map DEC. 16. 1915.

1,333,241. Patented Mar. 9, 1920.

W/TNESSES: INVENTOR l0 HQ Franz A. Boedrcher.

1*3 ATTORNEYS ELECTRIC SWITCH.

Specification of Letters Patent.

rrns PATENT lesion ;I- T,El? BERGENFIELD, NEl/V J ERSEY.

original application. filed February 21, 1234, Serial No. 826,188. Divided and this application filed December 1-3, 1815. Serial No. 7,181.

To all whom it may concern:

i e it known that l, FRANZ A. Bonn'rorinn, a citizen of the United States, residing at llergenfield, county of Bergen, and State W ersey, have invented certain n on new and u lul Improvements in Electric ,flwitches, of which the following is a specification.

This invention relates to improvements in electric switches, and the object of the in vention is to produce a switch which may control one or more electric circuits and which will be extremely simple in construe 5 n, durable and fficient in operation, and not apt to get out of order.

he switch of the present invention 'ularly applicable for use in elevator 1 and controlling systems, and its muploynie-nt in this environment is dis clo ed in my allowed application. Serial ll o. 0,188, filed February 21, 1914, of which ti "cseut application forms a division.

; one or ore contacts, in operative re- 0 which pivotally mounted a mov- Ember normally out of engagement :he contact or contacts, but adapted, ."zd upon by suitable mechanism, lie connection. with one of said con-- and thus close the circuit, preferably momentarily. I V

In one of its preferred practical forms,

. he invention embodies a pair of spaced contact-s which are either resilient 0r resiliently mounted, and between these contacts eX-- tends an arm which is mounted for pivotal movement, but normally held out of engage-- ment with either of the contacts by a resilient member which serves to carry current from the main, With the movable member cooperates a trip which automatically operated by the movements of the device with which the switch is associated whereby the trip, in engaging with the movable member forces the same into engagement with one or the other of the contacts and completes the circuit from the main through the wiring associated with the contact engaged. When moving in the opposite direction, the trip shifts the movable member into engagement with the other contact and switches the circuit from the main through the wiring with which said contact is associated. This is the construction preferably employed in 'enerally, the invention em-v in is to be understood as illustrative, only,

and not as defining the limits of the invention.

Figure l is a longitudinal vertical section through a casing disclosing in side elevation one embodiment of the invention, certain parts of an elevator system being shown associated therewith.

Fig. 2 is a section through Fig. l approximately on line 2 2, certain parts being broken away, and- Fig. 3 1s a section taken on line 3-8 of its heretofore stated, the invention is particularly adapted for use with elevator signaling or controlling systems, and, accordingly, for the purpose of illustration, the drawings show the invention in this environment. In elevator systems of the type, c. 9., shown in my copending application referred to, switches are necessary for causing the proper operation of the annunciators in the elevator cars. That is to say, when a button is pushed by a passenger at a floor, the annunciator in one or more of the cars will be operated to show what floor the passenger is on. When the elevator is ascending, the signals given by the persons desiring to go up will be recorded on the annunciator, and, when. the elevator is descending, the signals of those persons desir ing to go down will be exhibited. Two cir cuits are, therefore, necessary, which circuits correspond to the up and down direc-. tions of the elevator. The present invention shown in the drawings as associated with in which case the switch of this invention would be employed in lieu of those now used. Referrlng to the drawings, 1 indicates the l atented Mar. 9, 192

shewi, and the deseh.

- there.

usual rod or ebie of Whei'ein a shake is ing the signals. The the usual indiee. each floor for advising a. 1 gear of the l'nevement 1- or the cars. Thp neehen MAJ be limited to such sil ing manifest that, with a piumi mere duplication *vveuld he nee the car r tei'iec i to .....-J6Il .iS r00. L. 11101'623 upwardly s] as b so mews, at 03am 4-, which is DEF/L. 1n desirable Way,

(119.1111) Zia eemi shaped inemhn'ei- 2 R06. 1 istme, v raise member a .e direetien.

arm 5 adapted. to ope. ate indicating e ieei; 01- psi]. kind fer desi 'nating the dire and position of the eieveter.

It is on shaft 7 that the mg tne snitch 0;. the me ntec, and the mem.

form 0f three i'zzdiai arms 8 are secured te synchronise; ti

ll'iSUl forming the 1mm he described.

The swite: 11. 11 iii the drew-w inge is in'the-form adeptefitecohtlel f1. {JiJ- "eiity 01 'C-ilCl'iitS, e. 1e 1 eh'cnitefer thi'ee 5001's 01" e. helevatel' signaling system. meet, u) bleek 1- preferably 'z'zzztei'iaiis 1) 0 vicied -Jn"=;hev which block are "it" pairs cei'itzzet e-hull in sure lock 14:, ii;

inte springs the 211151165 one anethe" is-seeuie mwire 5' meeting thehi'ueh to the corresponds, and. ti 5.. as Well :-1s:the brushes ins tiiated from one enothe' my insulating 'ehzatmeter elf block ii.

ivlounted 1 .13011 the edges 01 hieeh 1 1:, and

e ztending heyenfl the end thereof are side plates which can; i." a? eu bleak .efdnsulatien .28; the "function 0 "tum the arms of the "E -pieces which extent CACJ Hive V a imizn over the 1 e at their "free ends ,With the cjaceit the points of pivoting thereof. The tension of leaf-spring 30 is suflieieiit to normally matini. hm shes 15, ag

between the free ends 0:5? the hriizshes in p1- sitlons norms. J intermediate the brushes 0 each pair MM. :1 of Contact with either, each spring ing pi'm 1 with 11 feet 31 re g 5 5 1 liCil feet iii- ""es the centralizing ieee. h niece. 01' at z A sprin e of liaise-b111 1 g e 1 which is i 1 h he 1 aha an. i sugply either hi" each pe'r.

T-pieees 11 and 13 each have :7. depending portion 10" "1d 10", l'QSPBtiVQi),

which are normally iii the path of arms 8, 8 nd 8", reepeetivel; Arms 8 etc, are matermi. 01. 3): least hated. when the T mater] 2. .1.

meunte. e

and tilt mid T piecee into enp I .ent elthe 0i. the com-impending brushes in the of mew-men 1 moving its insucordahee with direction eeid T- t with V circuit .39, T eehei will opei 'ate '7 "3S 8 and 8 pen their 1: 1s fiHHPQ i.

'n'mner pieces when shaft Wise direction. Y I turned in 5 .,UOUHtQFUiGCkWiSG diyeeti I engagement 01*. mm 8 with the-depending P0161011 of its T-pieee '17. i'ockeaici piece into -engage1nent with brush 16 and establish it current fir-em Wire throng spring 30, T-piece l2, -=1Lm1 contact brush 16, to the other wire T he other arms 8' end S WiijgOPOl'Qikf: in a. similar nmnuer (hen e shaft is rotated in a counter-che'eawise vi i,

.. eetion.

W111 be nebeql that, shaft 7 turns, are hrought lute engagement with the depending portions of their T pieces, tilt the T-pieces into engagement with that the tilting of the T-pieces tOjDfiliQ the circuit is usually only momentzn'y. 'lhat to say, the circuits are generally broken, through the releasing of the T-pieces by the associated arn, immediately after the circuit is completed, so that the make is but momentary. Such a momentary current is all that is usually required in elevator circuit control, and I recomm nd its employment because of its economy in current consumption. it is to preclude undue straining of the brushes during the ma 'in'uun angle of tilt of the l pieces that s rings are pr vided, it being manifest that. it said brushes were rigid, undue strain might be placed upon the mechanism during the period referred to. However. it the brushes are made resilient. or in l-"" screws and springs 22 may be omit In the form of the invention SllOVI il'l ijlh switch mechanism is positioned within a casing 26, and block It pivotally secure as at 27 to the wall of the casing. Through lock 28. at the other end of the. switch mechanism, extends a post which is cured to the wall or" the casing. and arrmnd said post is coiled a spring So id spring is on the opposite side of the switch meehanism from that side on which shaft 7 is located, and, accordingly. the pivoting oi the switch mechanism, and the cusliioniu of the same by means of spring 29, obviate any jar or vibration which, perhaps, might otlr erwise result from the quick operation of the T-pieces by arms 8, 8 and 8".

The foregoing description sets forth in detail one specific embodiment ot' this invention, and its manner of use and operation. However, it is to be understood that the present invention is not limited to the construction or use illustrated. and described. E. 9., three pairs of switches are shown. and three arms are shown on shaft 7 for controlling said switches. Manifestly. only one pair of switches and one arm might be-em ployed. Moreover, it onlv one circuit were to be used. only one brush would be necessary, one of the brushes oi the pair being dispensed with. Furthermore, in utilizing the switch of the present invention as a door switch, or in any other environment. the pivoting of block 14:, and the cushioning thereof by means such as spring 29. are unessential, as well as the particular means for operating the arms mounted. on the shaft These arms nnght be the catch of a doorwhat 1' claim as new, and desire to secure by Letters Patent, is:

1. is a. new article of manufacture, an electric switch embodying a plurality of spaced, insulated Contact members with each of which is associated one lead of an electric circuit, swinging bars, insulated from each other, cooperating with said contact members and each of which bars is in electrical connection with the circuit of the corresponding contact member, said swinging bars being adapted to be individually swung to contact with their respective contact members for closing the circuits ass0- ciated therewith, and resilient current carrying means for normally maintaining the swinging bars tree from engagement.with the contacts.

2. As a new article of manfacture, an electric switch embodying a pivotally mounted supporting bar formed. of insulating material. cushioning, means cooperating therewith, upper and lower contact members projecting therefrom, means for resiliently holding said contact members in operative position, and a pivotally mounted arm adapted, when actuated, to connect either of said contact members with a source of current, thereby completing the circuit of the respective contact members.

3. As a new article of manufacture, an

electric switch embodying a supporting bar of insulation, a pair of contact members loosely mounted on opposite sides of said bar of insulation, springs arranged adjacent each of said contact members for resili ently holding them against said bar of insulation, said contact members projecting beyond said bar of insulation, a pivotally mounted contact bar arranged with one end between said first-mentioned contact members and designed to be swung to engage either of said contact members, and means for normally holding the contact bar out of engagement with the contact members, said means acting as an electrical conductor for completing the circuit when the swinging contact bar is in engagement with either of said first-mentioned contact members.

4L. As a new article of manufacture, an electric switch embodying a pair of opp0- sitely movable contacts insulated from each.

other, a swinging bar arranged with its end pro ecting between sald contacts, an operating arm for actuating said swinging bar, a

spring member for normally holding said swinging bar 1n a neutral position, and

means for actuatingsaid;arm to bring the bar: into engagement with either of said contacts.

5J1 s a new article of manufacture, an electric switch en'ibodying contact member, a swinging contact, means for actuating said swinging contact, means for supporting both oi aid contacts, and a resilient member for holding said supper 'ig means nor ly in a predetermined position relative to the actuating ill-23118, saidresilient means being designed to cushion the switch mechanism when operated upon by the actuatingineans, and thereby relieve unusual strain. on the device.

. Lib

.a new article of manufacture, an switch embodying a supporting an electrically connected contact an electrically connected swinging electric member, thereon,

member also mounted on the suppciting member, means fornorinally maintaining the swinging member-free from engagement with the contact, means for actuating the swinginginieinberto bring it into engagen'icnt with the'contact, in combination with means forcushioning the supporting member agaiustthe operations oi": the actuating means.

7QAs a new article of manufacture, an electric switch embodying supporting member of insulating material, upper and lower contact iiei'nbers mounted thereon and n'ojecting beyon il the edge thereof, means resiliently holding the contact members in operative position, and a pivot-ally niounted arm adapted, when actuated, to connect either oi said: contact incn'ibers with a source oi electric current, and means for normally maintaining the pivotal arm in neutral posit-ion.

L1 contact members and designed to be swung e engage either of said contact n embers, .nd means for normally holding the contact bar out of engagement with t 1e contact members. 7

9. i s article inanufacnure, an 1 electric switch embodying; a pair 0' space; movable contacts insulated from one 9 other, apivoted member arranged to proiect between said contacts, means for actuating; th pivoted member, and a single leaf spring provided with a foot engag; 9' with the pivoted member on o )posite sides of the pivot point of said member for normally holding the member in neutral position.

10. As a new article 0:5 manufacture, an electric switch embodying a supporting member, a pair of spaced movable, contacts mounted thereon and. insulated from one unotner, a pivoted member mounted on the supporting member and arranged to pro ect between said contacts, means for op ratsaid pivoted member to swing it into env agenieni's with either of said contacts, and

single leaf spring mounted on the supportineniber ano en jug with the pivoted ember at opposite s1 tltor normally maintaining the pivoted rnenr ber in neutral position.

In testimony whereof I have signed my name to this specification.

FRANZ A. BQEDTCHER.

s of the pivot thereof 

